OGS Monthly Newsletters 2016-Present

Includes Quarterly Journals 2008-2016

Jump to Quarterly Journals

May 2026 Newsletter, Volume 36, Issue 9

Apr 2026 Newsletter, Volume 36, Issue 8

Mar 2026 Newsletter, Volume 36, Issue 7

Feb 2026 newsletter, Volume 36, Issue 6

Jan 2026 Newsletter, Volume 36, Issue 5

Dec 2025 Newsletter, Volume 36, Issue 4

Nov 2025 Newsletter, Volume 36, Issue 3

Oct 2025 Newsletter, Volume 36, Issue 2

Sep 2025 Newsletter, Volume 36, Issue 1

Jun 2025 Newsletter, Volume 35, Issue 10

May 2025 Newsletter, Volume 35, Issue 9

Apr 2025 Newsletter, Volume 35, Issue 8

Mar 2025 Newsletter, Volume 35, Issue 7

Feb 2025 Newsletter, Volume 35, Issue 6

Jan 2025 Newsletter, Volume 35, Issue 5

Dec 2024 Newsletter, Volume 35, Issue 4

Nov 2024 Newsletter, Volume 35, Issue 3

Oct 2024 Newsletter, Volume 35, Issue 2

Sep 2024 Newsletter, Volume 35, Issue 1

Jun 2024 Newsletter, Volume 34, Issue 10

May 2024 Newsletter, Volume 34, Issue 9

Apr 2024 Newsletter, Volume 34, Issue 8

Mar 2024 Newsletter, Volume 34, Issue 7

Feb 2024 Newsletter, Volume 34, Issue 6

Jan 2024 Newsletter, Volume 34, Issue 5

Dec 2023 Newsletter, Volume 34, Issue 4

Nov 2023 Newsletter, Volume 34, Issue 3

Oct 2023 Newsletter, Volume 34, Issue 2

Sep 2023 Newsletter, Volume 34, Issue 1

Jun 2023 Newsletter, Volume 33, Issue 10

May 2023 Newsletter, Volume 33, Issue 9

Apr 2023 Newsletter, Volume 33, Issue 8

Mar 2023 Newsletter, Volume 33, Issue 7

Feb 2023 Newsletter, Volume 33, Issue 6

Jan 2023 Newsletter, Volume 33, Issue 5

Dec 2022 Newsletter, Volume 33, Issue 4

Nov 2022 Newsletter, Volume 33, Issue 3

Oct 2022 Newsletter, Volume 33, Issue 2

Sep 2022 Newsletter, Volume 33, Issue 1

Jun 2022 Newsletter, Volume 32, Issue 10

May 2022 Newsletter, Volume 32, Issue 9

Apr 2022 Newsletter, Volume 32, Issue 8

Mar 2022 Newsletter, Volume 32, Issue 7

Feb 2022 Newsletter, Volume 32, Issue 6

Jan 2022 Newsletter, Volume 32, Issue 5

Dec 2021 Newsletter, Volume 32, Issue 4

Nov 2021 Newsletter, Volume 32, Issue 3

Oct 2021 Newsletter, Volume 32, Issue 2

Sep 2021 Newsletter, Volume 32, Issue 1

Jun 2021 Newsletter, Volume 31, Issue 10

May 2021 Newsletter, Volume 31, Issue 9

Apr 2021 Newsletter, Volume 31, Issue 8

Mar 2021 Newsletter, Volume 31, Issue 7

Feb 2021 Newsletter, Volume 31, Issue 6

Jan 2021 Newsletter, Volume 31, Issue 5

Dec 2020 Newsletter, Volume 31, Issue 4

Nov 2020 Newsletter, Volume 31, Issue 3

Oct 2020 Newsletter, Volume 31, Issue 2

Sep 2020 Newsletter, Volume 31, Issue 1

Jun 2020 Newsletter, Volume 30, Issue 10

May 2020 Newsletter, Volume 30, Issue 9

Apr 2020 Newsletter, Volume 30, Issue 8

Mar 2020 Newsletter, Volume 30, Issue 7

Feb 2020 Newsletter, Volume 30, Issue 6

Jan 2020 Newsletter, Volume 30, Issue 5

Dec 2019 Newsletter, Volume 30, Issue 4

Nov 2019 Newsletter, Volume 30, Issue 3

Oct 2019 Newsletter, Volume 30, Issue 2

Sep 2019 Newsletter, Volume 30, Issue 1

Jun 2019 Newsletter, Volume 29, Issue 10

May 2019 Newsletter, Volume 29, Issue 9

Apr 2019 Newsletter, Volume 29, Issue 8

Mar 2019 Newsletter, Volume 29, Issue 7

Feb 2019 Newsletter, Volume 29, Issue 6

Jan 2019 Newsletter, Volume 29, Issue 5

Dec 2018 Newsletter, Volume 29, Issue 4

Nov 2018 Newsletter, Volume 29, Issue 3

Oct 2018 Newsletter, Volume 29, Issue 2

Sep 2018 Newsletter, Volume 29, Issue 1

Jun 2018 Newsletter, Volume 28, Issue 10

May 2018 Newsletter, Volume 28, Issue 9

Apr 2018 Newsletter, Volume 28, Issue 8

Mar 2018 Newsletter, Volume 28, Issue 7

Feb 2018 Newsletter, Volume 28, Issue 6

Jan 2018 Newsletter, Volume 28, Issue 5

Dec 2017 Newsletter, Volume 28, Issue 4

Nov 2017 Newsletter, Volume 28, Issue 3

Oct 2017 Newsletter, Volume 28, Issue 2

Sep 2017 Newsletter, Volume 28, Issue 1

Jun 2017 Newsletter, Volume 27, Issue 10

May 2017 Newsletter, Volume 27, Issue 9

Apr 2017 Newsletter, Volume 27, Issue 8

Mar 2017 Newsletter, Volume 27, Issue 7

Feb 2017 Newsletter, Volume 27, Issue 6

Jan 2017 Newsletter, Volume 27, Issue 5

Dec 2016 Newsletter, Volume 27, Issue 4

Nov 2016 Newsletter, Volume 27, Issue 3

Oct 2016 Newsletter, Volume 27, Issue 2

Sep 2016 Newsletter, Volume 27, Issue 1

Jun 2016 Newsletter, Volume 26, Issue 10

May 2016 Newsletter, Volume 26, Issue 9

Apr 2016 Newsletter, Volume 26, Issue 8

Mar 2016 Newsletter, Volume 26, Issue 7

Feb 2016 Newsletter, Volume 26, Issue 6

Jan 2016 Newsletter, Volume 26, Issue 5

OGS Quarterly Journals

Quarterly Journals began in Jan 1975. Editions prior to 2008 to be added later.

Jan 2016 Quarterly Journal, Volume 42, Issue 1

Apr 2015 Quarterly Journal, Volume 41, Issue 2

Jan 2015 Quarterly Journal, Volume 41, Issue 1

Oct 2014 Quarterly Journal, Volume 40, Issue 4

Jul 2014 Quarterly Journal, Volume 40, Issue 3

Apr 2014 Quarterly Journal, Volume 40, Issue 2

Jan 2014 Quarterly Journal, Volume 40, Issue 1

Oct 2013 Quarterly Journal, Volume 39, Issue 4

Jul 2013 Quarterly Journal, Volume 39, Issue 3

Apr 2013 Quarterly Journal, Volume 39, Issue 2

Jan 2013 Quarterly Journal, Volume 39, Issue 1

Oct 2012 Quarterly Journal, Volume 38, Issue 4

Jul 2012 Quarterly Journal, Volume 38, Issue 3

Apr 2012 Quarterly Journal, Volume 38, Issue 2

Jan 2012 Quarterly Journal, Volume 38, Issue 1

Oct 2011 Quarterly Journal, Volume 37, Issue 4

Jul 2011 Quarterly Journal, Volume 37, Issue 3

Apr 2011 Quarterly Journal, Volume 37, Issue 2

Jan 2011 Quarterly Journal, Volume 37, Issue 1

Oct 2010 Quarterly Journal, Volume 36, Issue 4

Jul 2010 Quarterly Journal, Volume 36, Issue 3

Apr 2010 Quarterly Journal, Volume 36, Issue 2

Jan 2010 Quarterly Journal, Volume 36, Issue 1

Oct 2009 Quarterly Journal, Volume 35, Issue 4

Jul 2009 Quarterly Journal, Volume 35, Issue 3

Apr 2009 Quarterly Journal, Volume 35, Issue 2

Jan 2009 Quarterly Journal, Volume 35, Issue 1

Oct 2008 Quarterly Journal, Volume 34, Issue 4